Why do people collect prints?

Pablo Picasso, Minotaure caressant du Mufle la Main d'une Dormeuse (S.V. 93), 1933. Drypoint; image: 11 5/8 x 14 3/8 inches; sheet: 15 1/8 x 19 ½ inches. Signed in pencil, lower right.

A black-and-white etching shows a reclining nude woman with eyes closed as a second figure with dark, textured hair leans over her, their bodies intertwined in an intimate, abstract composition.

Jenny Gibbs of IFPDA Print Fair expert opinion column

Why do people collect prints?